Originally published at: Trig Avionics Introduces TT23 Transponder
New compact transponder offers smaller size, ADS-B Out and reduced weight
Combining the GPS into the transponder is great idea to reduce complexity and cost. Just how much? I wish I had an option for my TT22. The TN70 GPS is almost the same cost as the TT23, so that’s not going to work. My ADS-B solution was a uAvionix EchoUAT with GPS. Works great but Canadian airspace doesn’t care about UAT. The TT22 thinks it has a GPS on the TMAP Bus but it will not go 1090 ADS-B. Yes, I talked to both manufacturers. I would like a solution that doesn’t cost so much. How about a deal for existing TRIG customers to introduce this solution!
If you are installing in a SeaRey, you could use the TN72 GPS. Much less expensive, and ideal for an Experimental aircraft with a TT22.
Thanks Andy for that post. The TN72 GPS with TA70 GPS antenna is almost another $2K. This is still too expensive and I don’t like the constraints on coax to the antenna. The TT22 allows 3 different inputs @9600 B. If I select NMEA 0183 then I can use a cheaper serial data GPS but the SIL will be 0 and NavCan/FAA will not accept the ADS-B. Will other aircraft & tracker systems follow me better than my UAT in Canada? NavCan/FAA will still get my transponder A/C/S for separation, just not 1090 ADS-B.
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